diff --git a/argon2.changes b/argon2.changes
index c45551b..ba9e328 100644
--- a/argon2.changes
+++ b/argon2.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Tue Jan  9 10:56:17 UTC 2018 - jengelh@inai.de
+
+- Update description.
+
 -------------------------------------------------------------------
 Tue Jan 09 08:10:20 UTC 2018 - lnussel@suse.de
 
diff --git a/argon2.spec b/argon2.spec
index 2c61087..9b233ec 100644
--- a/argon2.spec
+++ b/argon2.spec
@@ -40,11 +40,12 @@ BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 
 %description
 This is the reference C implementation of Argon2, the password-hashing function
-that won the Password Hashing Competition (PHC).
+that won the Password Hashing Competition (PHC) in 2015.
 
-Argon2 is a password-hashing function that summarizes the state of the art in
-the design of memory-hard functions and can be used to hash passwords for
-credential storage, key derivation, or other applications.
+Argon2 is a password hashing function that is parametrized by a time cost, a
+memory cost and a parallelism degree, used to guard against side-channel
+attacks, attacks where lots of memory is available, or attacks where a lot of
+processing is available.
 
 %package doc
 Summary:        Documentation for Argon2
@@ -52,8 +53,8 @@ Group:          Documentation/Other
 BuildArch:      noarch
 
 %description doc
-Documentation for Argon2, the password-hashing function that won the Password
-Hashing Competition (PHC).
+Documentation for Argon2, the password hashing function that won the Password
+Hashing Competition (PHC) in 2015.
 
 %package -n %{lname}
 Summary:        The reference C implementation of Argon2
@@ -61,7 +62,7 @@ Group:          System/Libraries
 
 %description -n %{lname}
 Reference C implementation of Argon2, the password-hashing function
-that won the Password Hashing Competition (PHC).
+that won the Password Hashing Competition (PHC) in 2015.
 
 %package devel
 Summary:        Development files for argon2
@@ -70,7 +71,8 @@ Requires:       %{lname} = %{version}
 
 %description devel
 Headers for argon2, the reference C implementation of Argon2, the
-password-hashing function that won the Password Hashing Competition (PHC).
+password hashing function that won the Password Hashing Competition
+(PHC) in 2015.
 
 %prep
 %autosetup